My husband's family always makes coffee cake for holidays. Specifically, the sour cream coffee cake from Joy of Cooking, with the streusel topping on page 721. It's quick, it's easy, it's tasty, and though I prefer my family's traditional cinnamon rolls and poppyseed kolaches, I'm happy to make the coffee cake for my husband.
Our oven broke a few days before Christmas, and one thing snowballed into another, and we ended up doing an entire kitchen remodel. Since DH didn't get his Christmas coffee cake, I promised I would make it as the inaugural item baked in our new double ovens.
The day came, and I made the coffee cake. A standard coffee cake with streusel topping. And it...kind of folded in on itself and the streusel ended up in the middle of the coffee cake. It was still perfectly delicious, but it was strange. I've never experienced anything like it--it's usually a normal coffee cake with streusel topping. I chalked it up to learning how to use the convection oven.
This morning, I made the coffee cake again. No convection function this time. And this time, the streusel migrated all the way to the bottom of the coffee cake. Again, it's delicious. Maybe even better tasting, actually. ;-) But strange! Why is this happening? Anyone have some insight?