Gather all ingredients before starting the recipe.
Mix 2 tbsp honey, 1 tbsp brown sugar, 3 tbsp soy sauce, 2 tbsp Worcestershire sauce, 1/2 tsp Asian chili sauce, 2 cloves garlic, grated and 2 tbsp bourbon or whiskey in a small bowl and stir to combine. Cut 1 1/2 lbs tenderloin tips into cubes of roughly the same size.
Add marinade and tenderloin to a small bowl or a plastic resealable bag and message to make sure that beef is fully covered. Refrigerate for a half hour or up to one hour. Remove from refrigerator at least one hour before cooking.
Quarter 14-18 whole shiitake or cremini mushrooms and set aside until ready to cook.
When ready to cook tenderloin, remove beef from marinade to a paper towel and pat dry.
Add 1/2 tbsp olive oil to 10" skillet over medium high heat for 1-2 minutes.
Add tenderloin tips to skillet and cook for 1-2 minutes, or until the first side is nicely caramelized.
Flip the tenderloin to the second side and continue to cook for another 2-3 minutes or until the second side is nicely caramelized.
Remove tenderloin to a plate and heat 1-2 tablespoons of butter in the same skillet. Add quartered mushrooms.
Sauté mushrooms until nicely browned
Return tenderloin tips to pan and toss to combine, sauté for another 2-3 minutes.