Peanut Butter Honey Buttermilk Cake with Chocolate-Peanut Butter Streusel

The cake is tender, moist, and buttery, thanks to the buttermilk, butter, and peanut butter. There’s no sugar in the cake batter and is instead lightly sweetened with honey. The streusel layer is chock full of peanut butter flavor and is bursting with chocolate chips. Best of all, the cake is made i...