1. In a small bowl, combine all streusel ingredients until crumbly.
2. Preheat the oven on the Convection Humid Mode at 350°F.
3. In a medium bowl combine all dry ingredients.
4. In a separate bowl, whisk together all wet ingredients until well combined.
5. Mix together the wet and dry ingredients with a rubber spatula until combined.
6. Divide the batter evenly between cups in the muffin tin.
7. Bake for 20-25 minutes.