Strawberry Shortcake Cupcakes

Ingredients

• non-stick baking spray
• 1 1/4 cups (about 11 1/4 ounces) all-purpose flour
• 1 teaspoon baking powder
• 3/4 teaspoon baking soda
• 3/4 teaspoon salt
• 1/2 cup buttermilk, at room temperature
• 1 teaspoon pure vanilla extract
• 3/4 cup (about 5 1/4 ounces) granulated sugar
• 1 stick (4 ounces) unsalted butter, at room temperature
• 2 large eggs, separated and at room temperature
• 1 pound fresh strawberries, hulled and sliced from pole to pole
• 1 tablespoon granulated sugar
• 2 teaspoons fresh juice from 1 lemon
• 1/8 teaspoon salt
• 2 ounces cream cheese, softened
• 1 1/2 cups heavy or whipping cream, chilled
• 3/4 cup confectioners’ sugar