Heat oven to 350℉.
Line muffin pans with paper liners, or spray with baking spray. Set aside.
In a small saucepan, combine milk and tea bags.
Heat to steaming.
Remove from heat and allow to steep for at least 5 minutes.
In a large bowl, whisk together flour, sugar, baking powder, and salt. Set aside.
In a medium bowl, whisk together eggs, oil, vanilla, and tea infused milk.
Pour wet ingredients over dry ingredients.
Stir until dry ingredients are completely incorporated.
Fill muffin cups ¾ full.
Top with streusel.
Bake for 15-18 minutes, or until done.