Apple Cinnamon Crumb Muffins

Bahan-bahan (14 porsi)

• 1/3 cup (67g) packed light or dark brown sugar
• 1 Tablespoon (15g) granulated sugar
• 1 teaspoon ground cinnamon
• 1/4 cup (4 Tbsp; 56g) unsalted butter, melted
• 2/3 cup (84g) all-purpose flour (spooned & leveled)
• 1 and 3/4 cups (219g) all-purpose flour (spooned & leveled)
• 1 teaspoon baking soda
• 1 teaspoon baking powder
• 1 teaspoon ground cinnamon
• 1/2 teaspoon salt
• 1/2 cup (8 Tbsp; 113g) unsalted butter, softened to room temperature
• 1/2 cup (100g) packed light or dark brown sugar
• 1/4 cup (50g) granulated sugar
• 2 large eggs, at room temperature
• 1/2 cup (120g) yogurt or sour cream, at room temperature
• 2 teaspoons pure vanilla extract
• 1/4 cup (60ml) milk (any kind), at room temperature
• 1 and 1/2 cups (180g) peeled & chopped apples (1/2-inch chunks; you need about 2 medium apples)
• 1 cup (120g) confectioners’ sugar
• 3 Tablespoons (45ml) heavy cream (or milk for a thinner consistency)
• 1/2 teaspoon pure vanilla extract