Apple Cinnamon Streusel Muffins Gelson's

Ingredients

• ⅓ cup packed brown sugar
• 1 Tbsp granulated sugar
• 1 tsp Gelson’s ground cinnamon
• ¼ cup unsalted butter, melted
• ⅔ cup all-purpose flour
• 1 ¾ cups all-purpose flour
• 1 tsp baking soda
• 1 tsp baking powder
• ½ tsp kosher salt
• ½ cup unsalted butter, room temperature
• ½ cup packed brown sugar
• ¼ cup granulated sugar
• 2 Gelson’s large eggs, room temperature
• ½ cup sour cream, room temperature
• 2 tsp pure vanilla extract
• ¼ cup milk, room temperature
• 2 medium apples, peeled and chopped into ½” chunks (about 1 ½ cups)
• 1 cup confectioners’ sugar
• 3 Tbsp heavy cream
• ½ tsp pure vanilla extract