Final answer:
The Beermosa is made with Beer and Orange Juice. It is a play on the classic Mimosa cocktail, substituting beer for champagne, blended to taste.
Step-by-step explanation:
The primary ingredients of a Beermosa are Beer and Orange Juice. A Beermosa is a cocktail that is a variation of the traditional Mimosa, which is made with champagne and orange juice. Instead of champagne, you use a light beer to mix with the orange juice. The typical ratio for a Beermosa is one part orange juice to two parts beer, but everyone can adjust this to taste.