Fill around the bulbs with more compost to about 2cm below the rim of the pot, leaving the tips of the bulbs showing.
Water the bulbs. Take care not to overwater, especially if the container has no drainage holes.
Put in a cool, dark place, such as a dark corner in a shed, garage or even the porch, to chill. Check on them regularly to ensure that the compost has not dried out. When the shoots are about 5cm high, bring the pots indoors, where they will take about three weeks to flower. Keep from drying out.
Note: After flowering indoors, move the containers to a sheltered spot in the garden and feed with a general-purpose plant food to encourage flowering next year. Alternatively, tip them out and plant them in the garden in a sunny spot.
Watch the link here for a short video from Gardener’s World Monty Don.