Flat FrogCocktail recipe
Rating
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Flat Frog is a playful, modern highball-style mixed drink that leans into the bright, alcopop-and-beer mashups you’ll often see at casual parties and student-bar menus. Rather than a storied classic with a fixed origin, it sits firmly in the “easy-pouring” era of long, fizzy drinks built for a pint glass, where colour, sweetness, and crowd-pleasing familiarity matter more than tradition.
On the palate, peach schnapps brings a clear, candy-like stone-fruit sweetness that immediately sets the tone. Smirnoff Ice adds crisp, lemony sweetness and plenty of carbonation, while WKD blue layers in an extra hit of sugary, citrus-leaning fruitiness and that unmistakable bright-blue character. A small measure of lager threads through the mix with a light, bready bitterness that slightly reins in the sweetness and keeps the finish from feeling too syrupy.
You’ll find this works best when you want something loud, fizzy, and uncomplicated—ideal for house parties, pre-drinks, or nights where you’re serving a group with mixed tastes. If you like sweet, colourful, ready-to-drink flavours but want them stretched into a longer pint, this is squarely in your lane.
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Cocktail Colin says:
Peach schnapps leads with syrupy stone-fruit sweetness, quickly washed into fizzy, candy-bright notes from Smirnoff Ice and WKD blue, while a small splash of lager adds a faint bready, lightly bitter edge. It works as a loud, easy-drinking pint because the lager’s bite reins in the alcopop sugar just enough; best for sweet-tooth drinkers who want maximum fizz and minimal boozy burn.
Method
How to make a Flat Frog
- Peach schnapps 30ml, Lager 10ml, Smirnoff Ice 275ml, WKD blue 275ml
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- Add lager, peach schnapps, Smirnoff Ice and WKD Blue to a pint glass
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- Stir and serve
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FAQ's
What can I use if I don't have WKD Blue for the Flat Frog?
If you don't have WKD Blue, you can substitute it with any blueberry-flavored alcopop or a mix of blue curaçao and a lemon-lime soda to mimic the sweet and fruity flavor profile.
What is the best way to serve a Flat Frog?
The best way to serve a Flat Frog is cold, poured into a pint glass. Ensure all ingredients are chilled before mixing. Stirring gently before serving helps to combine the flavors without losing carbonation.
How does the alcohol content in a Flat Frog compare to a standard beer?
A Flat Frog has an alcohol content of approximately 4.81%, which is quite similar to many standard beers, which typically range from 4% to 6% alcohol by volume. However, the cocktail's volume at 590ml is larger than a standard beer serving.
Can you make a Flat Frog cocktail stronger if desired?
Yes, to make a Flat Frog stronger, you can add a higher proportion of Smirnoff Ice or a shot of vodka to boost the alcohol content. Adjusting the ratios of the alcoholic ingredients will modify the strength to your preference.
What occasions are most suitable for serving a Flat Frog?
The Flat Frog, with its sweet and fruity flavor profile, is perfect for casual gatherings, summer parties, or as a fun addition to a themed event. Its playful name and unique color make it a conversation starter at any casual social occasion.
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