Family

Wehman's Bartender's Guide by Henry J. Wehman (1891, p.42) — Henry J. Wehman 1891

8 dashLemon juice (fresh) — lemon juiceacid
1 tbspsugar — sugarbase
water — hot waterdilution
  1. Add the sugar and lemon juice to a large bar glass.
  2. Fill up with hot water.
  3. Stir up with a spoon and serve.
Nose
Warm lemon rises clearly with a soft steam-sweetened edge.
Palate
It is simple and restorative, showing the temperance side of the same hot-service instincts seen in toddies and slings.
Finish
The finish is warming, bright, and gently sweet.
Summary
A bare but revealing hot citrus serve sitting close to the old hot mixed-drink grammar.

Hot Lemonade is useful because it shows that the infrastructure of hot service was not exclusive to alcohol. The same glassware, spoon handling, and warm restorative logic crossed the temperance divide.

Because the formula is minimal, proportion matters. The drink should be decisively lemony rather than just weakly warm and sweet.

Compared with Hot Whiskey, this is the temperance mirror image. Compared with party Lemonade, it is much more immediate and restorative than social and batched.

Daly's Bartenders' Encyclopedia by Tim Daly (1903, p.58)

5 dasheslemon juice — Source says five or six dashes.acid
1 spoonfulsugar base
hot water — Fill the glass with hot water.dilution
  1. Add the sugar and lemon juice to a mixing glass.
  2. Fill with hot water, spoon well, and serve.

Daly explicitly frames this as a preventive cold remedy taken before retiring, which is historically useful context.

The identity is in its simple hot remedial service, not decorative bar practice.

Jack's Manual by J. A. Grohusko (1910, p.57)

1 lemonlemon juice acid
1 tablespoonfulsugar base
hot water — Fill with hot water.dilution
  1. Build the sugar and lemon juice in a glass.
  2. Fill with hot water, stir well, and serve.

Ice: None

Bartenders' Guide: How to Mix Drinks by Wehman Bros. (1912, p.40)

8 dashlemon juice — Lemon juiceacid
1 tablespoonsugar — Sugarbase
water — Hot waterdilution
  1. Combine the sugar and lemon juice, fill the glass with hot water, stir with a spoon, and serve.

Ice: Ice

The Up-to-Date Bartender's Guide by Harry Montague (1913, p.31)

1 lemonlemon juice — Juice of one lemon.acid
1 tablespoonfulsugar — bar sugarbase
hot water — Substituted for cold water.dilution
fruit — Dress with fruit.garnish
ice — Serve on the side in another glass.other
  1. Prepare the drink as for Plain Lemonade, substituting hot for cold water.
  2. Serve with a long spoon and ice on the side in another glass.

Garnish: Fruit

Source is explicitly substitution-based in service.

Julian's Recipes by Julian Anderson (1919, p.14)

0.5 jiggerlemon juice acid
2 tablespoonfulssugar base
boiling water — Fill up.dilution
  1. Put the sugar and lemon juice in a lemonade glass with a spoon inside the glass.
  2. Fill up with boiling water, stir, and serve.

See also: Orange Lemonade, Hot Toddy

Source notes to put a spoon into the glass to prevent cracking.