What is the compound I made from KNO3 and table sugar which subsequently exploded when I exposed it to a flame? I mixed 75% $\ce{KNO3}$ and 25% $\ce{C12H22O11}$ (by volume) in boiling water to make slow burn fuses. Some of the product became a thick brown paste. 

After drying, a hard cake of an approximate 1 tablespoon amount exploded when lit. What compound did I make?
It's not a new compound - it's just an intimate mix of fuel (sugar) plus oxidiser (nitrate). It's not the most stable of situations to have...