Avocado Crema:

1. In a mixing bowl, mash the avocado really well until no lumps remain.
2. Combine all ingredients and whisk until smooth.
3. Add more milk if you want it thinner.

Salsa Chicken Tacos:

1. Chicken:
   1. Put chicken and salsa in your crockpot and cook on high for three hours (or low for six).  Then shred chicken, stir well into salsa and let cook about 30 more minutes.
2. Pickled onions:
   1. Slice onion, and put it in a mason jar with the salt and red wine vinegar.
   2. For the first twenty minutes, shake every few minutes to evenly coat onion.
   3. Let sit in fridge overnight.
3. Tortillas:
   1. Spray a skillet with a little avocado oil and cook each side of tortilla until it is brown and toasty.
4. Assembling tacos:
   1. On top of your tortilla, place chicken, then onions, add some arugula, and drizzle crema on top!