Ingredients

• ¹/₂ cup (40 grams) old-fashioned oats
  
• ¹/₂ cup (60 grams) all-purpose flour
  
• 2 tablespoons whole-wheat flour
  
• ¹/₄ teaspoon baking powder
  
• ¹/₄ teaspoon fine sea salt
  
• ¹/₄ teaspoon ground cinnamon
  
• 4 tablespoons (57 grams) cold unsalted butter, cut into 1/2-inch cubes