Porto Flip
The Porto Flip is a whole egg yolk shaken into port and brandy, and it belongs to a family of drinks that has almost entirely disappeared. A flip in the eighteenth century meant a heated mixture of spirit, sugar and egg, often stirred with a red-hot iron; by the nineteenth it had settled into the cold, shaken, egg-enriched drink the name means today. Forty-five millilitres of tawny port to fifteen of brandy and ten of egg yolk makes a short, rich, faintly nutty drink with a texture closer to a dessert wine than to a cocktail. It is not a long evening's drinking. It is one glass, after dinner, in place of something sweet. The nutmeg is not optional in any meaningful sense. Grated fresh over the surface it supplies the aromatic lift that stops the whole thing reading as heavy.
Glassware: Coupe Glass
Garnish: Freshly Grated Nutmeg grated fresh over the surface at the table
Ingredients
45ml
Tawny rather than ruby, and the specification is right to say so. Oxidative ageing gives it nut, dried fig and caramel that complement the egg yolk, where a ruby port brings bright fruit that makes the drink taste like a pudding.
15ml
A third of the port measure, and there to add backbone rather than flavour. Without it the drink is a fortified wine with an egg in it; with it there is enough spirit weight to stop the texture reading as merely thick.
10ml
Roughly half a large yolk, and it emulsifies rather than foams: fat and lecithin binding the port and brandy into something silky and opaque. Separate it carefully, because any white that crosses will foam and spoil the surface.
Instructions
Chill a small coupe in the freezer or with ice water.
Separate the egg and measure the yolk carefully, keeping any white out.
Add the port, brandy and egg yolk to a shaker without ice and shake for 10 seconds.
Add ice and shake hard for a further 15 seconds until fully emulsified.
Double strain into the chilled coupe and grate fresh nutmeg over the surface.
Source: the IBA (Official IBA specification). Last checked 13 August 2026.
Expert Tip
Shake it harder and longer than instinct suggests. An egg yolk emulsifies rather than foams, and it needs real agitation to bind the port and brandy into something silky — an under-shaken flip is stringy and unpleasant in a way no amount of stirring afterwards will fix. Fifteen seconds hard with ice is the minimum, and a dry shake first genuinely helps. Separate the egg properly. Any white that crosses into the yolk will foam under that shaking and leave a bubbled surface, which ruins both the texture and the flat canvas the nutmeg needs. Grate the nutmeg fresh and grate it at the table. The pre-ground jar has lost its volatile oils and adds colour rather than aroma, and in a drink this rich the aromatic lift is doing structural work rather than decorating.
Flavour Profile
What a Flip Is
The category is older than most of the canon and has narrowed considerably along the way.
An eighteenth-century flip was beer, rum and sugar heated with a glowing iron called a loggerhead, which caramelised the sugar and gave the drink its burnt, frothy character. Eggs came in later as a thickener. By the time Jerry Thomas was writing in 1862 the heat had gone and the definition had tightened to spirit or fortified wine, sugar and a whole egg, shaken cold. The modern flip drops the sugar where the base is sweet enough, which is exactly the case here.
A flip uses the whole egg or the yolk alone. A drink with only the white in it is a sour, not a flip.
The Yolk
Ten millilitres is roughly half a large yolk, and it is doing something quite different from an egg white.
White is protein and water and it builds foam: air held in a stable structure, which is why a whiskey sour arrives with a head on it. Yolk is fat and lecithin, and it emulsifies instead. It will not foam much however hard it is shaken; what it does is bind the port and brandy into something silky and opaque, adding weight and a faint richness without sweetness. That texture is the entire point of the drink.
Separate it carefully. Any white that comes across will foam and spoil the surface the nutmeg needs.
Tawny, Not Ruby
The official specification names red tawny port, and the distinction changes the drink completely.
Ruby port is aged in bulk with minimal oxygen contact: fruity, sweet, purple and comparatively simple. Tawny is aged in smaller casks with deliberate oxidation, which turns it amber-brown and develops nut, dried fig and caramel notes. Against an egg yolk, the tawny's nuttiness is complementary and the ruby's bright fruit is not — a ruby flip tastes like a fruit dessert, where a tawny flip tastes composed.
A ten-year tawny is the right level. Anything older is wasted under the egg, and anything younger has not developed the character the drink is built around.
How to Serve It
Shaken hard and long, double strained into a chilled small coupe, with nutmeg grated over the surface at the table.
It needs more shaking than a normal drink. The yolk has to emulsify properly and a short shake leaves it stringy and unpleasant — fifteen seconds hard is the minimum, and a dry shake first is worth the extra step. Grate the nutmeg fresh: the pre-ground jar has lost its volatile oils and contributes colour rather than aroma, which in a drink this rich is the difference between lift and none.
Serve it after dinner and serve one. It is short, rich and complete on its own.
The Spirit
PortPortugal's fortified: brandy-arrested fermentation keeping half the grape's sugar. Ruby, tawny and white are different drinks sharing a name.
Frequently Asked Questions
What is a Porto Flip?
Tawny port, brandy and egg yolk shaken together and served up with fresh nutmeg. The official specification is 45ml, 15ml and 10ml respectively. It belongs to the flip family, which historically meant spirit, sugar and egg shaken cold.
What is the difference between a flip and a sour?
The egg. A flip uses the whole egg or the yolk alone, which emulsifies and adds silky weight. A sour that uses egg uses only the white, which foams and adds a head. A drink with just the white in it is not a flip.
Why tawny port rather than ruby?
Tawny is aged oxidatively and develops nut, dried fig and caramel notes that complement the egg yolk. Ruby is fruitier, sweeter and simpler, and against a yolk it makes the drink taste like a fruit dessert rather than a composed cocktail.
Is it safe to drink raw egg yolk?
For most people, yes, using fresh eggs from a reputable source — British Lion-marked eggs are vaccinated against salmonella. Anyone pregnant, elderly, very young or immunocompromised should avoid raw egg, and pasteurised yolk is a sound substitute.
Where this one sits
Recipe by Jerry Can Spirits
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