Whisk the butter, the honey, and lime zest in a bowl until smooth, or pulse to combine them in a mini food processor. Refrigerate until ready to serve with the pancakes.

Whisk together the flours, baking soda, salt, and cinnamon in a large bowl. In a separate bowl, whisk together the buttermilk, eggs, melted butter, and honey. Stir the wet ingredients into the dry ingredients until just combined; don't worry about lumps.

Melt 1 tablespoon of butter in a large skillet over medium-high heat. Working in batches, drop the batter, about 1/4 cup at a time, into the skillet. Cook until the surface is bubbling and the bottom is golden brown, 2 to 3 minutes. Flip each pancake and cook until the bottom golden brown and the pancake is firm, about 2 minutes more. Remove the pancake to a platter and cover with foil. Repeat with the remaining batter, using more butter if necessary. Serve topped with the honey butter.