Warm Raspberry Vanilla Milk from Frozen Berries
Frozen raspberries turn ordinary warm milk pink, which makes this a simple February drink when fresh berries are out of season. Cook the berries separately and add just enough strained syrup to flavor the milk. Keeping the milk below a simmer and combining the two in the mugs gives you more control over both the color and texture.
For two mugs
- 1 cup frozen raspberries
- 1/4 cup water
- 3 tablespoons granulated sugar
- 1 3/4 cups whole milk
- 1/4 teaspoon vanilla extract
You’ll need a small saucepan, a fine-mesh sieve, and a heatproof bowl. A second saucepan is handy, but you can rinse the first one before warming the milk.
Make the pink syrup
Bring the raspberries, water, and sugar to a boil. Reduce the heat to a steady simmer and cook for 5 minutes, stirring occasionally. Break up the softened berries with the back of a spoon. Set the sieve over the bowl and pour in the berry mixture. Press lightly until the syrup stops dripping freely; scraping the seeds hard against the sieve pushes pulp through and makes the drink gritty.
Warm and serve
Heat the milk over medium-low until it steams, then take it off the heat and stir in the vanilla. Divide the milk between the mugs. Stir 1 tablespoon of syrup into each, then taste. Add more a teaspoon at a time for a deeper color and more raspberry flavor. Serve immediately.
What to adjust
If the milk starts to look grainy as you add the syrup, stop adding it. Raspberry acidity varies, and boiling the combined drink can make separation worse. For the next batch, let the milk cool slightly and use less syrup. A thin syrup is fine here because it mixes easily; if the raspberry flavor is weak, simmer the strained syrup for another minute or two before using it. Refrigerate any leftover syrup in a covered container and use it within three days. Spoon it over yogurt or stir a teaspoon into cold milk for a second serving.
