Chocolate Chip Muffins

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Details

15 Ingredients

• 3-1/2 cup all purpose flour (use unbleached if you have it)
• 4 tsp baking powder
• 1/2 tsp baking soda
• 1/2 tsp salt
• 1-1/3 cup granulated sugar
• 10 tbsp unsalted butter, melted and cooled slightly
• 1 cup whole milk, at room temperature
• 1 cup sour cream, at room temperature
• 2 large eggs, at room temperature
• 1 large egg yolk, at room temperature
• 1 tsp pure vanilla extract
• 1-1/2 cup chocolate chips
• 3 cup icing sugar
• 6 tbsp water
• 1/4 tsp cinnamon