Raspberry Pear Butter - cooking recipe

Ingredients

4 lbs ripe pears, peeled, cored & chopped
4 cups raspberries (fresh or frozen)
1/4 cup lemon juice
sugar (see below)

Preparation

Combine pears, raspberries and lemon juice in large saucepan. Bring to a boil.
Lower heat to simmer and continue cooking, stirring often for 1 hour or until fruit is very soft.
Remove from heat and press fruit through a fine messed sieve or fine grade food mill.
Measure resulting fruit pulp. For each 2 cups pulp, measure 1 1/2 cups sugar. Return pulp to pan and add sugar.
Stir mixture over low heat with a wooden spoon until sugar has completely
dissolved.
Simmer over low heat, stirring frequently until butter thickens. Ladle into hot.
jars leaving 1/4 inch headspace.
Seal. Process jars in a hot water bath for 10 minutes.