Peanut Butter and Jam Muffins

Name: Peanut Butter and Jam Muffins
Prep time: 10 min
Cook time: 30 min
Total time: 30 min
Yield: 12 pieces
Ingredients: 2 oz all-purpose flour; 1 oz brown sugar; 1 oz sugar; 1 pinch ground cinnamon; 1 pinch salt; 1 ½ oz unsalted butter; 1 ½ oz unsalted dry-roasted peanuts; 2 ½ oz unsalted butter; 6 oz creamy peanut butter; 3 oz light brown sugar; 1 large egg; 4 oz plain whole milk yogurt; 4 ½ oz whole milk; 1 tsp vanilla extract; 6 oz all-purpose flour; ¾ tsp baking powder; ½ tsp baking soda; ¼ tsp salt; 3 oz strawberry jam