These muffins are so good! If you like peanut butter you should make these ASAP. The crumble topping was so good I was just eating it straight out the the mixing bowl. I’m thinking the topping would be great on banana bread, something I am definitely looking forward to trying. I used less jam than the recipe called for and I regretted it. It seems like a lot when you are putting the muffins together but it really could use the full amount, otherwise the peanut taste can be a little overwhelming. Also, the recipe seems like it makes a lot more topping than you could possibly need, but use the whole thing. For one it’s what makes these muffins so incredibly good, and two, the muffins don’t rise very high so you can really pack the crumble topping in there and they bake up just fine.