LME has the right kinds of sugar, but it is harder to measure.
It is the consistency of molasses.
And there's no way to seal up the can again.
Your grocery store might have Goya Malta in the ethnic aisle.
It's an unfermented malt beverage.
Dilute it to 1.040 with water and stir out the fizz.
Liquid yeasts are a bit of a hassle.
Dry yeast is more reliable, less expensive, and can be stored in the fridge for a year.