Try to get as many seeds out of the chiles as possible. Place in saucepan with water and whole garlic cloves. This is a good time to turn your vent on and/or open a window, as the fumes from the cooking chiles are strong! Bring to boil, then reduce to simmer for 10 minutes.
While the chiles are simmering, place chopped onion and vinegar into your blender. Let sit for 5 minutes. The vinegar will start to cook the onions just slightly (think ceviche) so they won't be too sharp or aggressive a flavor.
Add cherries and honey to onion and vinegar, and add in chile mixture, along with any liquid that remains in the pan (there should be a couple Tablespoons left).
Season well with salt and pepper, and blend well. Enjoy on salads, as a salsa with chips, or a sauce for meat, fries, anything that needs a little spicy love!