The invention relates to an electric home yogurt maker that comprises at least one location (28) for a pot (3), and a heating means (15). According to the invention, the electric home yogurt maker includes a tank for a liquid, the heating means (15) being adapted to transmit a heating power to the liquid for increasing, by means of heat transfer, the temperature of the preparation contained in the pot (3) within a yogurt-production temperature range and within a time of less than or equal to thirty minutes. The invention also relates to a method for preparing a yogurt that includes a step of raising the temperature of a pot (3) containing a milk-based preparation with a first phase, the duration of which is less than or equal to thirty minutes for heating a liquid provided near the pot (3) so as to raise the temperature of the milk-based preparation within a yogurt-preparation temperature range.