Strawberry Prep: Thaw or gently cook frozen strawberries; drain canned ones well; wash and de-stem fresh strawberries.
12 oz strawberries
Puree: Blend strawberries into a puree and strain for smoothness.
Mix Ingredients: In a saucepan, combine all but 1/4 cup of milk with the strawberry puree, egg yolks, vanilla extract, and sugar. Whisk well.
1 cup milk, 4 egg yolks, 1 teaspoon vanilla extract, 7 tablespoons sugar
Heat Mixture: Cook over medium heat until nearly boiling, stirring frequently to prevent the yolks from curdling.
Cornstarch Slurry: Mix the reserved milk with cornstarch until smooth.
4 tablespoons cornstarch
Combine Slurry: Add the slurry to the heated mixture as soon as bubbles appear, stirring quickly.
Thicken Cream: Return to heat and stir continuously until the mixture thickens and bubbles, about 2-4 minutes.
Finish Cooking: Remove from heat, whisk vigorously for a minute to smooth out the texture.
Add Butter: Incorporate butter into the cream until melted and smooth.
2 tbsp unsalted butter
Season to Taste: Adjust sweetness and flavor with additional sugar or vanilla; add lemon juice if using.
4 teaspoons lemon juice
Strain (Optional): Strain to remove any lumps or cooked egg bits.
Cool and Chill: Cover with plastic wrap, let cool at room temperature, then chill in the refrigerator.
Whisk Before Using: Whisk until smooth and ready for use.