My solution to lattes at home, without an espresso machine.
Step 1: Espresso Machineless Espresso
Short of having a real espresso machine in the house, the best way I have found to fake espresso is the upside down brewing method using the amazing, affordable, portable, storable AeroPress coffee maker.
I finely grind 4 Tbsp. or 60ml of coffee beans to brew in the AeroPress with 2/3 cup boiling water. The trick then is to stir the coffee vigorously for ~ 20 seconds before attaching the filter and filter cap and turning the AeroPress right-side-up--letting it begin to drip into your mug.
After 20 seconds of gravity-fed dripping I begin to press the plunger, forcing the remaining water and grinds through.