Here's a basic Mojo recipe:
1/3 cup evoo
2/3 cup bitter orange juice*
2 tbs minced garlic
1/2 tsp (rounded) cumin
1/2 tsp kosher salt
1/2 to 1 tsp freshly ground black pepper
*Note - if you can't find the bitter orange, in a 1 cup measure, 1/4 cup lime juice (Or lemon - your call) then fill to 2/3 cup with orange juice.
Also, modify this by adding sugar, other spices (Clove is good) at will
Sautee garlic in the evoo (medium high heat - only takes a minute), the OJ and other ingredients are added and brough to a boil. Turned off the heat and allowed to get back to room temperature.