Name: Refreshing Drink for Invalids
Ingredients: 1 pound ground flax-seed; 2 lemons; 4 quarts water; sweetener to taste

Refreshing Drink for Invalids

Ingredients

1 pound ground flax-seed
2 lemons
4 quarts water
sweetener to taste

Directions

The book gives no cooking times; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.

Boil ground flax-seed and lemons in water for 30 minutes.
Remove from heat and let cool.
Sweeten to taste before serving.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

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What each ingredient does

Ground flax-seed: Thickens the liquid and gives the lemonade a body that is thicker than plain lemon water.
Lemons: Provide acidity and bright citrus aroma to the drink.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.