Start off by greasing a bundt cake pan and preheating the oven to 325 F (160C). Make the cinnamon streusel: mix together flour, brown sugar, cinnamon and salt until combined. Add the butter, and ...
Swirl the two elements together with a knife, but don’t mix completely. (Little bits of batter should be showing through the top.) Bake for 45 minutes until a toothpick inserted into the cake ...