First, preheat the oven to 400 degrees Fahrenheit (note, may need adjusted for high altitudes). Combine the canna flour, sugar, baking powder and baking soda, mixing together thoroughly. Next, combine the vinegar and canna milk, mixing together, before adding to the dry ingredients. After mixing thoroughly, place the dough on a floured surface and knead for a couple minutes. Now, shape the dough into a rounded ball between 1.5 and 2 inches high. Place the ball in a pan and use a knife dipped in flour to cut an "X" into the top of the ball of dough. Place in the oven for 40 minutes, subsequently removing from the oven and, while still hot, pouring 2 tbsp. of melted butter (preferably canna butter) over the bread. Let cool and enjoy with dip, as toast or as a sandwich. For a potent treat, use as toast with canna butter on top.