Marshmallow Cupcakes

120 g all-purpose flour 120 g caster sugar 1 1/2 teaspoons baking powder 1 pinch salt 3 tablespoons unsalted butter , softened 120 ml whole milk 1 egg 1[...]

2 cups all-purpose flour 2 teaspoons baking powder 1/2 cup unsalted butter , room temperature 1 cup sugar 2/3 cup low-fat milk 1 teaspoon vanilla 3 egg[...]

8 large egg whites 2 cups sugar 1/2 teaspoon cream of tartar 2 teaspoons pure vanilla extract 1 Place egg whites, sugar, and cream of tartar in the heatproof[...]