Basis for bombs

Transfer the jam in a bowl and slowly diluitela with two parts water, using the empty jar as a measuring cup and stirring constantly.

Add the lemon juice filtered, then passed through a sieve into a large plot.

In another bowl, whip the egg yolks with sugar until they are swollen and foamy well; then join, a little at a time and stirring constantly with a wooden spoon, diluted jam.

Mix well.

Pour the mixture into a prepared mold and keep it in freezer semi-spherical for 4 or 5 hours.

After this time, dessert, turn out and proceed to prepare the bomb, as indicated in specific recipes.

If you wish, you can place the ' base ' on a layer of sponge cake or Margarita Spain, which have of course the same diameter.