Lavender syrup is a 1:1 simple syrup infused with culinary lavender buds. The recipe: 1 cup sugar + 1 cup water heated until dissolved, then steeped with 2 tablespoons dried culinary lavender for 5–10 minutes. Strain, cool, refrigerate. Ready in under 15 minutes and lasts 2 weeks.
The key variable is steep time. Five minutes gives a delicate floral note. Ten minutes gives a stronger lavender flavor that stands up to espresso and steamed milk. Over fifteen minutes risks a soapy, medicinal taste — lavender is one of the few herbs where more steeping can make it worse.
Important: Use culinary-grade lavender only. Ornamental lavender (common garden lavender) may be treated with pesticides. Look for food-grade lavender buds at specialty grocery stores, spice shops, or online. The label should say “culinary” or “food-grade.”
The Recipe
Ingredients:
- 1 cup granulated sugar
- 1 cup water
- 2 tablespoons dried culinary lavender buds
Instructions:
- Combine sugar and water in a small saucepan over medium heat.
- Stir until the sugar is fully dissolved — about 3 minutes. Do not let it boil.
- Remove the saucepan from heat entirely.
- Add the lavender buds. Stir once.
- Steep for 5–10 minutes depending on your desired intensity (see chart below).
- Strain through a fine-mesh strainer into a clean jar or bottle. Press the buds gently to extract remaining syrup.
- Cool completely before sealing.
- Refrigerate. Use within 2 weeks.
Yield: ~1 cup (16 tablespoons) Coffee serving: 1–2 tablespoons per 12 oz drink
Steep Time Guide
| Steep Time | Result | Best For |
|---|---|---|
| 3–5 minutes | Subtle floral, lightly lavender | Iced lattes, cold brew, light coffee drinks |
| 7–8 minutes | Balanced — noticeable but not sharp | Most lavender lattes, cappuccinos |
| 10 minutes | Pronounced, strong lavender | Straight lavender syrup, lavender lemonade |
| 15+ minutes | Can taste soapy/medicinal | Avoid — oversteeping lavender is a common mistake |
The barista rule: Lavender is not a “steep it longer for more flavor” herb. Oversteeping releases terpenes (like linalool in high concentration) that turn floral into chemical. Stop at 10 minutes maximum.
Fresh vs Dried Lavender
| Dried Culinary Lavender | Fresh Lavender | |
|---|---|---|
| Availability | Specialty stores, online | Garden (summer only) |
| Flavor concentration | High — use 2 tbsp | Lower — use 3–4 tbsp |
| Food safety | Check label for “culinary” grade | Only use if unsprayed |
| Shelf life | 2–3 years properly stored | Use immediately |
| Color in syrup | Clear to pale purple | Slightly greener tinge |
| Best for | Year-round lavender syrup | Fresh summer lavender drinks |
If using fresh lavender: Triple the volume (about 4–5 large sprigs or ¼ cup loosely packed buds). The flavor is gentler than dried, so it requires more to achieve the same intensity. Confirm it’s unsprayed — fresh ornamental lavender from a garden center may have pesticide residue.
Adjusting Intensity: The 3 Levels
Mild (barista-style): 2 tablespoons lavender, 5 minutes steep. This is closest to what Starbucks uses in their Lavender Oatmilk Latte — floral background note, not dominant.
Medium (standard recipe): 2 tablespoons lavender, 8 minutes steep. Clear lavender character that holds up to espresso and oat milk. Good all-purpose lavender syrup.
Strong (lavender-forward): 3 tablespoons lavender, 8–10 minutes steep. For lavender lemonade, lavender cocktails, or if you want the lavender to be the star of the drink rather than the coffee.
Lavender Syrup Variations
Lavender honey syrup: Replace half the granulated sugar with raw honey (½ cup each). Add honey after removing from heat and before steeping lavender. Slightly more complex, pairs especially well with chamomile tea lattes and honey-based coffee drinks.
Lavender vanilla syrup: Add 1 teaspoon vanilla extract to the syrup after straining. Combines two of the most popular latte flavors. Works in any drink calling for either ingredient.
Earl Grey lavender syrup: Steep 1 tablespoon loose Earl Grey tea leaves alongside the lavender buds. The bergamot in Earl Grey complements lavender’s floral notes and creates a London Fog-adjacent syrup.
Lavender mint syrup: Add 3–4 fresh mint leaves during the last 2 minutes of steeping. Mint and lavender together — surprisingly good in iced coffee and cold brew.
What to Make With Lavender Syrup
Lavender Latte — 2 shots espresso + 1–2 tablespoons lavender syrup + 6 oz steamed oat milk. The home barista version of the Starbucks Lavender Oatmilk Latte (added to their permanent menu in 2024).
Lavender Cold Brew — Pour cold brew over ice, add 1–2 tablespoons lavender syrup, top with a splash of oat milk. Serve immediately. Floral and clean.
Lavender Iced Latte — 1½ tablespoons lavender syrup in the bottom of a glass, ice, 2 shots espresso, then cold oat milk or whole milk poured over. Stir before drinking.
Lavender Cold Foam — Mix 1 tablespoon lavender syrup with 3–4 tablespoons cold skim milk, froth with a handheld frother, spoon onto cold brew or iced latte. A sweet cream cold foam variation.
Lavender Lemonade — 2 tablespoons lavender syrup, fresh lemon juice, sparkling water. No coffee needed. A great way to use leftover syrup.
Storage
| Method | Duration | Notes |
|---|---|---|
| Refrigerated, sealed jar | 2 weeks | Color may fade to light yellow-green |
| Room temperature | 3–5 days | Not recommended |
| With 1 tsp vodka added | 3–4 weeks | Extends shelf life without flavor impact |
| Frozen (ice cube trays) | 3 months | Thaw as needed; texture unchanged |
The color note: Lavender syrup doesn’t stay purple. It typically starts as a pale lavender-pink and fades to a light amber or yellow-green within a few days. This is normal and doesn’t affect flavor. The color comes from anthocyanins in the lavender buds — they’re water-soluble and unstable.
If you want a more vibrant color for presentation, a drop of culinary food coloring (violet/purple) added after straining is the professional approach.
Frequently Asked Questions
What kind of lavender do you use for syrup? Always use culinary-grade (food-grade) dried lavender buds. The most common variety used in cooking is Lavandula angustifolia (English lavender), specifically cultivars like Hidcote or Vera. Avoid ornamental lavender varieties like Lavandula stoechas (French lavender) — the flavor compounds are different and it can taste medicinal. Never use lavender from a garden center unless you can confirm it’s unsprayed and food-safe.
Why does my lavender syrup taste soapy? Oversteeping is almost always the cause. Lavender contains linalool and linalyl acetate — fragrant compounds that convert to harsh, soapy-tasting compounds when steeped too long or at too high a temperature. Don’t boil the syrup while the lavender is in it. Remove from heat before adding the buds, and keep steep time to 10 minutes maximum. If it tastes soapy, dilute with plain simple syrup or start over with a shorter steep.
How much lavender syrup goes in a latte? Start with 1 tablespoon per 12 oz (tall) drink and adjust to taste. Most home baristas settle on 1–1.5 tablespoons for a 12 oz latte. Starbucks uses about 2 pumps of their lavender syrup per grande — each pump is roughly ½ tablespoon, so approximately 1 tablespoon equivalent. Because lavender flavor intensity varies by batch and steep time, tasting as you go is essential.
Can I use lavender essential oil instead of dried lavender? No. Lavender essential oil is highly concentrated and most food-grade uses require only a single drop (1–3 drops maximum per recipe), and even then it’s a different flavor profile — more perfume-like than the gentle floral of steeped buds. Most essential oils are also not approved for internal consumption. Use culinary lavender buds for the best and safest result.