Here's another toasting method:

Under a rack, place a small amount of a mixture of finely powdered aluminum and ferric oxide in the proportions of 25.3% to 74.7% by weight, respectively.

Put a slice of bread on the rack.

Put a peice of magnesium ribbon in the mixture and light it. Stand back.   WAY back.

When the mixture burns it will burn at about 2300 degrees C., so watch so that your toast doesn't burn.

Turn over and repeat for the other side.