Macaron filling of choiceganache, buttercream, or jam
Instructions
Wipe a large glass or metal mixing bowl with lemon juice or vinegar. Add egg whites, cover, and refrigerate for 24 hours, then bring to room temperature.
Line 3 large baking sheets with silicone mats or parchment paper.
Add cream of tartar and extract to egg whites. Beat with a mixer until soft peaks form. Gradually add superfine sugar until stiff glossy peaks form. Gently fold in food coloring.
Sift almond flour and confectioners’ sugar together in a bowl.
Slowly fold beaten egg whites into the almond mixture in 3 additions until the batter is honey-like in consistency.
Transfer batter to a piping bag fitted with a round tip. Pipe rounds onto baking sheets, spaced apart. Bang the pan to remove air bubbles.
Let macarons sit until a skin forms on top, about 30-60 minutes.
Preheat the oven to 325°F (163°C). Bake macarons for 13 minutes until set.
Cool on the baking sheet for 15 minutes, then transfer to a rack to cool completely.
Fill macarons with desired filling and sandwich together. Serve immediately or refrigerate for 12-24 hours to mature flavors.
Notes
Macaron fillings can include ganache, buttercream, or jam. Store leftover macarons in the refrigerator for up to 5 days.