A little girl was talking to her teacher about whales. The teacher said it was physically impossible for a whale to swallow a human because even though it was a very large mammal its throat was very small. The little girl stated that Jonah was swallowed by a whale. Irritated, the teacher reiterated that a whale could not swallow a human; it was physically impossible. The little girl said, "When I get to heaven I will ask Jonah". The teacher asked, "What if Jonah went to hell?" The little girl replied, "Then you ask him".
Preheat the oven to 350 degrees F (175 degrees C). Grease two 12 cup muffin pans or line with paper cups.In a medium bowl, stir together the flour, baking soda, baking powder and salt. In a separate bowl, beat the brown sugar, oil, egg, vanilla and buttermilk with an electric mixer until smooth. Pour in the dry ingredients and mix by hand just until blended. Stir in the rhubarb and walnuts. Spoon the batter into the prepared cups, filling almost to the top. In a small bowl, stir together the melted butter, white sugar and cinnamon; sprinkle about 1 teaspoon of this mixture on top of each muffin. Bake in the preheated oven until the tops of the muffins spring back when lightly pressed, about 25 minutes. Cool in the pans for at least 10 minutes before removing.