With a whisk, mix the dry ingredients for the chocolate mixture in a small bowl and set aside
In another bowl, do the same for the matcha mixture
Cream together the butter and the sugar. Add the milk, eggs, and vanilla and mix until thoroughly combined
Divide the creamed mixture evenly in two separate bowls
Slowly add the chocolate mixture to one half of the creamed mixture and mix thoroughly. Then, do the same with the matcha mixture and the other half of the creamed mixture.
Drop alternating spoonfuls of each mixture into the bundt pan until it’s about ¾ full
For a marbled effect, gently run a knife or poker through the batters in a swirling motion