Ingredients:

• 1/4 cup (50g) brown sugar
• 1/4 cup (50g) granulated sugar
• 1/4 cup (30g) all-purpose flour
• 1/2 teaspoon cinnamon
• 1/4 teaspoon salt
• 2 tablespoons butter, melted
• 1 1/2 cups (180g) all-purpose flour
• 1/2 teaspoon baking powder
• 1/4 teaspoon baking soda
• 1/2 teaspoon salt
• 1 teaspoon cinnamon
• 1/2 cup unsalted butter, at room temperature
• 3/4 cup (150g) granulated sugar
• 1 large egg, at room temperature
• 1 teaspoon vanilla extract
• 1/2 cup plain, unsweetened Greek yogurt
• 1/3 cup whole milk
• 1 large Granny Smith, Honeycrisp, or Golden Delicious apple, peeled and diced