Baking question: why do I bake a cake where the top half is fluffy and elastic, but the bottom half inside the cupcake is gluten-like and kind of strong!

It is possible that the cake is not baked.

The way to determine whether a cake is baked or not

1, look. The surface of the cake is golden brown and the top of the cake has risen

2, touch. Press the surface of the cake with the palm of your hand, it is elastic, feels hard and solid, and has no internal fluidity

3, listen. With a finger gently press the surface of the cake can be heard rustling sound

4, insert. With a bamboo skewer (or fruit knife, toothpick can also be) inserted into the highest point of the cake, there is no sticky wet matter.

And the cake, if it does bake through, then you need to shake it hard after it comes out of the oven.