Hawaiian Beef Sliders with Sriracha Cream Sauce

Drain pineapple juice into a small bowl. Add ponzu and sugar to the pineapple juice; stir to dissolve sugar. Refrigerate pineapple rings and 1/3 cup of the juice mixture.

Transfer remaining juice mixture to a resealable zip-top bag. Add steak and seal. Refrigerate for 8 hours to overnight.

Peel outer layer of onion. Slice onion as thinly as possible. Thinly slice jalapeno into rounds, removing ribs and seeds for less heat. Combine 1/4 of the onion slices, jalapeno, lime juice, sugar, and 1 pinch salt in a bowl. Set aside to quick-pickle, stirring occasionally, until ready to serve.

Mix sour cream and Sriracha sauce together in a bowl for the Sriracha cream. Set aside.

Heat 1 1/2 teaspoons oil in a large pan over medium-high heat. Add pineapple rings and cook, stirring occasionally, until lightly caramelized, 3 to 4 minutes. Remove from the pan and set aside. Add remaining onion and oil to the pan; season with salt and pepper. Cook and stir until softened, 4 to 5 minutes. Add garlic and cook until fragrant, about 30 seconds.

Drain sirloin from marinade. Add to the pan and season with salt and pepper. Cook until browned, 4 to 5 minutes. Carefully add reserved pineapple juice mixture to the pan. Cook and stir until liquid has mostly evaporated and beef is coated in sauce, 1 to 2 minutes. Remove from heat and stir in pickling liquid from onion and jalapeno. Taste and season with salt and pepper.

Assemble sliders by adding sirloin steak to each bun. Top with jalapeno slaw, Sriracha cream, and caramelized pineapple.