Place the room-temperature cream cheese in a medium mixing bowl.
Add the mayonnaise.
Beat the cream cheese and mayonnaise together until the mixture is smooth and fully combined.
Add the garlic powder, onion powder, and salt.
Mix until the seasonings are evenly incorporated.
Add the drained and chopped tamed jalapeños.
Add the drained and chopped roasted red peppers.
Stir until the peppers are evenly distributed throughout the cream cheese mixture.
Add the shredded white cheddar cheese.
Mix until all ingredients are well combined.
Cover the bowl tightly with plastic wrap or a fitted lid.
Refrigerate the dip for at least 30 minutes before serving.
Before serving, stir the dip gently.
Serve chilled with crackers, pretzels, tortilla chips, or fresh vegetable sticks.