Thou hast many a recipe for fruit butters. And very simple recipes they are.

I do all of these in a crockpot. Makes the house smell wonderful.

Note: I don't peel the pears or apples - I just Ninja the whole things after the cooking. But you may want to for a smoother consistency. I prefer getting the fiber.

Pear Butter -

8 pears, of any variety, peeled, cored, and chopped or sliced
1/4 cup apple juice or cider
1 or 2 cups packed brown sugar - I use 1
the juice of 1 lemons
2 whole star anise
1/2 teaspoon ginger
1/2 teaspoon nutmeg
2 Tablespoon cinnamon
1/4 teaspoon salt

Peel and core pears. Add everything to crockpot. On low and cook for 6-8 hours. Stir the pears about every hour or two. Pear butter is done when it has a deep color, pears are cooked to pieces, and it has thickened. Do not forget to remove the star of anise cloves before pureeing. You may want to use an immersion blender to puree the butter more.

Apple Butter
this one comes from a Year of Slow Cooking - except I changed the sugar from 3 cups to 2 and upped the vanilla

14 large apples fit in my 6.5 quart crockpot
1/4 cup apple cider or juice
2 tsp cinnamon
1 cups white sugar
1 cup brown sugar
1/2 tsp cloves
2 T vanilla

This is a 2-day process. Quarter the apples and take out the core. I did not peel, and picked out the skin later. If you enjoy peeling, or have one of those cool apple tools that peels easily, you should peel.
Although my picking out the skin later idea worked, it was kind of a pain. But (for me) it was easier than peeling all of the apples by hand.

Put all of the quartered apples into your crockpot. Add 1 tablespoon of vanilla. Cover and cook on low for 8 hours.

When the cooking is done, mash the apples with a fork. Pick out the skin with the fork. Stir in the sugar, cinnamon, and cloves.

Pumpkin Butter - easiest of all to make (but don't can this, doesn't keep well) I make this to use on pancakes.

1 (29 ounce) can pumpkin puree
3/4 cup apple juice
2 teaspoons ground ginger
1/2 teaspoon ground cloves
1 white sugar
1/2 cup brown sugar
2 teaspoons ground cinnamon
1 teaspoon ground nutmeg

Combine all. Cook in a crock for 6 - 8 hours. Yummy on biscuits, toast or pancakes.