How to brulee
You can use either a kitchen torch or your oven broiler to caramelize, but the kitchen torch will produce the best results.
Kitchen Torch— Cover the surface of the chilled custard generously with granulated sugar. Pass a kitchen torch back and forth over the sugar until it melts and caramelizes.
Broiler— Place the oven rack on the highest setting. Put the ramekins directly under the broiler and set it in the “high setting”. Wait for the sugar to melt and caramelize, rotating the ramekins as necessary for even browning. This can take up to 5 minutes.