Best Sour Cream Rhubarb Muffins - 5 Mins Recipes

Ingredients

• 1 1/2 cups all-purpose flour
• 1/2 cup granulated sugar
• 1 1/2 tsp baking powder
• 1/4 tsp salt
• 1/2 tsp ground cinnamon
• 1/2 cup sour cream
• 1/4 cup melted unsalted butter
• 1 large egg
• 1 tsp vanilla extract
• 1 cup fresh rhubarb, diced into 1/4-inch pieces
• 2 tbsp all-purpose flour
• 2 tbsp brown sugar
• 1 tbsp cold unsalted butter, cubed