Where does the term brownie points come from searching

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Keyword	CPC	PCC	Volume	Length string	Score
where does the term brownie points come from	1.53	0.1	9298	44	39
where did the term brownie points come from	0.86	0.1	4715	43	20
what does brownie points mean	0.3	0.5	4246	29	30
meaning of brownie points	0.03	1	3859	25	54
definition of brownie points	1.89	0.8	6166	28	92
brownie points idiom meaning	1.73	0.1	8959	28	68
brownie points urban dictionary	0.53	0.1	9287	31	12
where did the brownie come from	1.62	0.9	3416	31	79
browning points or brownie points	0.87	0.2	9126	33	57
another word for brownie points	1.39	0.4	8362	31	2
brownie points crossword clue	1.93	0.9	1389	29	19
brownie points for short	0.12	0.7	9578	24	40
score brownie points meaning	0.82	0.6	3960	28	85
what are brownie points in a relationship	0.38	0.4	4743	41	72
origin of the name brownies	0.26	0.6	401	27	2
why are they called brownies	1.33	1	3439	28	57
why are brownies called brownies	0.25	0.5	214	32	54

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