Try this French Toast Muffins recipe, or contribute your own.
Why does the bread dissolve into mush instead of holding its structure during baking? Porosity dictates success here, requiring stale or dry-cut French bread cubes that thirstily absorb the milk-and-egg mixture without disintegrating. Chilling the assembled muffin cups for several hours allows the starches in the bread to fully hydrate, transforming loose liquid into a uniform custard matrix. Incorporating cold butter directly into the flour, brown sugar, and cinnamon topping creates distinct pockets of fat that melt slowly in a 350-degree oven, forming a crisp crumb layer over the soft interior. Overworking the topping paste melts the butter prematurely, yielding a dense, hard shell rather than sandy crumbs. Visual inspection serves as the primary gauge for doneness since piercing a small pastry with a thermometer proves impractical; bake until the tops turn a deep golden brown and the edges pull slightly away from the pan. Allowing the baked portions to rest in the tin for 10 minutes lets internal steam redistribute and solidifies the crumb structure before removal.