Pumpkin Streusel Muffins

Name: Pumpkin Streusel Muffins
Prep time: 5 min
Cook time: 25 min
Total time: 25 min
Yield: 12 pieces
Ingredients: 3 tbsp sugar; ½ oz brown sugar; ½ oz all-purpose flour; ½ tsp homemade pumpkin spice mix; 1 pinch salt; 1 tbsp unsalted butter; 1 oz pumpkin seeds; 6 oz all-purpose flour; 2 ½ oz sugar; 2 ½ oz brown sugar; 1 tsp baking powder; ¼ tsp baking soda; ¼ tsp salt; 1 ½ tsp homemade pumpkin spice mix; 6 oz canned pumpkin purée; 2 oz vegetable oil; 2 large eggs; 1 tsp vanilla extract